Lua APA (7ú heag.)
ebrary, Inc, & Rutherford, W. E. (1984). Language universals and second language acquisition: Containing the contributions to a conference on language universals and second language acquisition held at the University of Southern California, February 1982. J. Benjamins Pub. Co..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus William E. Rutherford. Language Universals and Second Language Acquisition: Containing the Contributions to a Conference on Language Universals and Second Language Acquisition Held at the University of Southern California, February 1982. Amsterdam ; Philadelphia: J. Benjamins Pub. Co., 1984.
Lua MLA (9ú heag.)
ebrary, Inc, agus William E. Rutherford. Language Universals and Second Language Acquisition: Containing the Contributions to a Conference on Language Universals and Second Language Acquisition Held at the University of Southern California, February 1982. J. Benjamins Pub. Co., 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.